Photo is looking west. Small, international Airport is due east, southeast, 40 miles away. Of course, the loop in the pic is much, much further away than 40 miles, and probably had floated some before the pic was taken. Winds were probably wnw.

Ah ha! So, its all a plot by antihistamine makers!

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At night the stars put on a show for free (Carole King)

One Earth, One Sky - IYA 2009

My guess is that both are photoshopped.

Let's see if the anti-memory drugs haven't completely swamped my ability to recall what I've heard listening to put-me-to-sleep Coast to Coast AM....

The chemicals are to reverse the effects of global warming. The chemicals are to weaken immune systems because the New-World-Order Illuminati will soon drop the population to 500 million. Planetary defense: the chemicals kill alien invaders and do less damage to humans.

That's all now. The rest has mysteriously disappeared.

But, Wikipedia has a list:

You name it, chemtrails do it.

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Mermaids, schmermaids, those chemtrails are over the Bermuda Triangle™. The Illuminati/alien reptile connection is complete. Case closed.

BTW, it's a little known fact that chemtrails were how we defeated Nazi Germany in WWII. They infiltrated Hitler's brain and caused him to start believing in astrology, resulting in such brilliant military moves as invading the U.S.S.R. Heck, even Cliff Clavin knew that.

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A person's name, or a mark representing it, as signed personally or by deputy, as in subscribing a letter or other document.

And knowing all those GE manuals sure wouldn't help if the engine in question had been manufactured by P&W.

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A person's name, or a mark representing it, as signed personally or by deputy, as in subscribing a letter or other document.

Actually Hitler went with one of Germanys Reichsflugscheibe to
New_Swabia and is waiting for his return to the "Fourth Reich"

At least thats what some of the worse woowoos belief.

I see that quite a bit with the F16's on maneuvers from the ANG base near here. I also see many contrails from assorted passenger jets flying at high altitude over me (middle of nowhere) going somewhere.

tbm

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Paddle faster!! I hear banjo music!!

Contrails from control surfaces occur when the control surface deflects into the airstream in a way that affects its water-holding properties. Water vapor in the air condenses out under the local pressure conditions created by the interaction of the surface with the air. That will persist only for as long as the humidity is right and as long as the control surface and airflow maintain their relationship.

It's not uncommon to see brief contrails from the tips of the trailing edges of your ailerons while landing in San Francisco in the morning (typically cold and humid) as you roll left and right at approach speed (i.e., when the ailerons require proportionally greater travel).

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"Facts are stubborn things." --John Adams
Clavius Moon Base

Um, the mental picture I get when I hear about stuff being sprayed from planes is pesticide.
Do the CT's think somebody is trying to kill us off like bugs? ;-)

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"If you think the LHC will create black holes, you might as well believe Hobbits are at the bottom of your garden."- Dr. Mike Inglis
Rovers forever! - ToSeek
"Carl Sagan sent a message to ET,
Neil Armstrong walked in the Sea of Tranquility
Steve Squyers built Spirit and Opportunity
Dan Haylen upchucked in zero gravity." -Brent Simon, The Space Camp Song

If they are, maybe they should do it when flying at lower altitudes...
Next time you see a 747 approaching on you in an altitude of 150m, be sure to hold your breath.

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"Who does not know anything, must believe everything."
Baroness Marie von Ebner-Eschenbach 1830-1916

Hahahahahahahahahaha!

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"If you think the LHC will create black holes, you might as well believe Hobbits are at the bottom of your garden."- Dr. Mike Inglis
Rovers forever! - ToSeek
"Carl Sagan sent a message to ET,
Neil Armstrong walked in the Sea of Tranquility
Steve Squyers built Spirit and Opportunity
Dan Haylen upchucked in zero gravity." -Brent Simon, The Space Camp Song

Apparently it is some sort of mind control chemical which causes people to develop paranoia and loose critical thinking skills.

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Be very, very careful what you put into that head, because you will never, ever get it out. ---Cardinal Wolsey (1475-1530)

My God! Its working! We now have proof!

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Carl Matherly

Offical Battlestar Galactica Apologist

Named Time Magazine's 2006 "Person of the Year"

Both of those photos are fuel dumping, imo.

The EA-6 Mercury TACAMO plane had to have it's fuel dump valves moved inboard due to the electronic gear and trailing wire antenna equipment mounted in the wing tips near where the valves would normally be on a 707.

This is because the tips of lifting surfaces like - eg the end of an aileron or the actual wing tip - generate trailing vortices with low pressure at their cores. The vortex is caused by air from the high pressure side of the surface flowing around the tip to the low pressure side. Combining this motion with the overall direction of the external airflow produces a helical flow - a vortex. The effect is similar to the clouds you sometimes see around the wings of high-speed aircraft in humid conditions, but different from the contrails caused by water vapour from the engines, as low pressure contrails dissappear when the pressure rises downstream as air viscosity disperses the vortex.

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"The truth may be out there, but lies are inside your head" Terry Pratchett

__________________
"If you think the LHC will create black holes, you might as well believe Hobbits are at the bottom of your garden."- Dr. Mike Inglis
Rovers forever! - ToSeek
"Carl Sagan sent a message to ET,
Neil Armstrong walked in the Sea of Tranquility
Steve Squyers built Spirit and Opportunity
Dan Haylen upchucked in zero gravity." -Brent Simon, The Space Camp Song

At one time, it might've been possible. For example (and considering US airliners), if you saw two contrails very close together, it might well be a DC-9. If they were separated a bit, they could've been a 737. Three contails could be a 727 if they were close together and distinguishable. If they were spread apart, they might be an L-1011 or DC-10. Four contrails would've most likely been a Boeing 707, 720 (kind of rare) or 747. They could've also been a DC-8 with the slight possibility of being a Convair 880 or 990 (but those were fairly rare). It could even possibly be a B-52 (8 engines mounted 2 to a pylon produced 4 distinguishable contrails).

It isn't so easy today. Consider the case where you see two separated contrails in parallel:

Is it a 737, an A-300, A-320 (or 318, 319), A-330, 757, or 767? It really isn't possible to tell.

Two engines close together could be a large business jet like a Gulfstream, a regional jet, or one of the DC-9 derivatives (e.g. MD-80). Again, it really isn't possible to tell.

I once saw a program on TV (it was about UFOs) in which a former British pilot claimed that certain contrails (looked like they left vortices or corkscrew-shaped contrails) were special hypersonic aircraft.

Not two days after that